Improvement in journal-boxes



P. SWEENEY.

JOURNAL-BOX.

Patented 0ct.10.1876

UNITED STATES PATENT QFFICE.

PETER SWEENEY, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND WILLIAMBOURGOYNE BISHOP, OF SAME PLACE.

IMPROVEMENT IN JOURNAL-BOXES.

Specification forming part of Letters Patent No. 183,080, dated October10, 1876; application filed March 31, 1876.

To all "whom it may concern:

Be it known that 1, PETER SWEENEY, of the city, county, and State of NewYork, have invented a new and useful Improvement in Journal-Boxes, whichimprovement is fully set forth in the following specification, referencebeing had to the accompanyingdrawing, in Which Figure 1 represents alongitudinal vertical section. Fig. 2 is a plan or top view.

Similar letters indicate corresponding parts.

This invention consistsin ajournal-box the bearingsurface of which iscomposed of supporting-layers 0t rawhide alternating withlubricating-layers made chiefly from boiled oil, beeswax, graphite, andmercury.

In the drawing, the letter A designates the shell of my journal-box,into which are placed the supporting-layers B and the lubricatinglayers(1. .Said supporting-layers are made of rawhide, which may be preparedby soaking it in water and in a solution of chloride ofzinc or otherequivalent material, 'amlfihey alternate with the lubricating-layers U,as shown in the drawing. These lubricating-layers are made of a compoundcontaining chiefly graphite, mercury, beeswax, and boiled linseed-oil,to which may also be added paper-pulp, said compound being molded andpressed into layers of the required form or shape. If desired,

the supporting-layers B may be provided with holes or cells for thereception of some lubricating compound, and the layers B 0 may either bearranged parallel to the journal, as shown, or transversely to the same.

By combining the supporting-layers B and the lubricating-layers O in themanner described, I have produced ajourual-loox which requires nolubrication, and in which a shaft can be run for days in succession at agreat speed without heating. By the friction ot'the shaft a portion ofthe lubricating-layers is carried over the edges of thesupporting-layers and pressed into the pores of the rawhide, so that theentire bearing is practically formed by the lubricating compound, andthe heating of the journal is effectually prevented.

What I claim as new, and desire to secure by Letters Patent, is-

A self-lubricatingjournal-box, composed of a shell, A, supporting-layersB, of rawhide, and lubricating-layers G, composed of boiled oil,beeswax, mercury, and graphite, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 28th day of March, 1876.

PETER SWEENEY.

Witnesses:

W. HAUFF, E. F. KASTENHUBER.

